<template>
  <div class="user-info-head" @click="editCropper()">
    <img :src="options.img" title="点击上传头像" class="img-circle img-lg" />
    <el-dialog
      v-model="open"
      :title="title"
      width="800px"
      append-to-body
      @opened="modalOpened"
      @close="closeDialog"
    >
      <el-row>
        <el-col :xs="24" :md="12" :style="{ height: '350px' }">
          <vue-cropper
            v-if="visible"
            ref="cropper"
            :img="options.img"
            :info="true"
            :auto-crop="options.autoCrop"
            :auto-crop-width="options.autoCropWidth"
            :auto-crop-height="options.autoCropHeight"
            :fixed-box="options.fixedBox"
            :output-type="options.outputType"
            @real-time="realTime"
          />
        </el-col>
        <el-col :xs="24" :md="12" :style="{ height: '350px' }">
          <div class="avatar-upload-preview">
            <img :src="options.previews.url" :style="options.previews.img" />
          </div>
        </el-col>
      </el-row>
      <br />
      <el-row>
        <el-col :lg="2" :md="2">
          <el-upload
            action="#"
            :http-request="requestUpload"
            :show-file-list="false"
            :before-upload="beforeUpload"
          >
            <el-button>
              选择
              <el-icon class="el-icon--right">
                <Upload />
              </el-icon>
            </el-button>
          </el-upload>
        </el-col>
        <el-col :lg="{ span: 1, offset: 2 }" :md="2">
          <el-button icon="Plus" @click="changeScale(1)"></el-button>
        </el-col>
        <el-col :lg="{ span: 1, offset: 1 }" :md="2">
          <el-button icon="Minus" @click="changeScale(-1)"></el-button>
        </el-col>
        <el-col :lg="{ span: 1, offset: 1 }" :md="2">
          <el-button icon="RefreshLeft" @click="rotateLeft()"></el-button>
        </el-col>
        <el-col :lg="{ span: 1, offset: 1 }" :md="2">
          <el-button icon="RefreshRight" @click="rotateRight()"></el-button>
        </el-col>
        <el-col :lg="{ span: 2, offset: 6 }" :md="2">
          <el-button type="primary" @click="uploadImg()">提 交</el-button>
        </el-col>
      </el-row>
    </el-dialog>
  </div>
</template>

<script setup lang="ts">
  import 'vue-cropper/dist/index.css'
  import { VueCropper } from 'vue-cropper'
  import { UploadRawFile } from 'element-plus'
  import { UserService } from '@/api/userApi/usersApi'
  import { useUserStore } from '@/store/modules/user'

  interface Options {
    img: string | any // 裁剪图片的地址
    autoCrop: boolean // 是否默认生成截图框
    autoCropWidth: number // 默认生成截图框宽度
    autoCropHeight: number // 默认生成截图框高度
    fixedBox: boolean // 固定截图框大小 不允许改变
    fileName: string
    previews: any // 预览数据
    outputType: string
    visible: boolean
  }

  const userStore = useUserStore()

  const open = ref(false)
  const visible = ref(false)
  const title = ref('修改头像')

  const cropper = ref<any>({})
  //图片裁剪数据
  const options = reactive<Options>({
    img: userStore.info.avatar,
    autoCrop: true,
    autoCropWidth: 200,
    autoCropHeight: 200,
    fixedBox: true,
    outputType: 'png',
    fileName: '',
    previews: {},
    visible: false
  })

  /** 编辑头像 */
  const editCropper = () => {
    open.value = true
  }
  /** 打开弹出层结束时的回调 */
  const modalOpened = () => {
    visible.value = true

    nextTick(() => {
      // console.log('modalOpened, cropper:', cropper.value)
      if (!cropper.value) {
        ElMessage.error('裁剪组件未初始化！')
      }
    })
  }
  /** 覆盖默认上传行为 */
  const requestUpload = (): any => {}
  /** 向左旋转 */
  const rotateLeft = () => {
    cropper.value.rotateLeft()
  }
  /** 向右旋转 */
  const rotateRight = () => {
    cropper.value.rotateRight()
  }
  /** 图片缩放 */
  const changeScale = (num: number) => {
    num = num || 1
    cropper.value.changeScale(num)
  }
  /** 上传预处理 */
  const beforeUpload = (file: UploadRawFile): any => {
    if (file.type.indexOf('image/') == -1) {
      ElMessage.error('文件格式错误，请上传图片类型,如：JPG，PNG后缀的文件。')
    } else {
      options.fileName = file.name
      const reader = new FileReader()
      reader.readAsDataURL(file)
      reader.onload = () => {
        options.img = reader.result as string
        nextTick(() => {
          visible.value = true
        })
      }
    }
  }
  /** 上传图片 */
  const uploadImg = async () => {
    if (!cropper.value) {
      ElMessage.warning('裁剪组件未初始化，尝试重新获取...')
      await new Promise((resolve) => setTimeout(resolve, 500)) // 等待 500ms
    }

    if (!cropper.value) {
      ElMessage.error('裁剪组件仍然未初始化，上传失败！')
      return
    }

    cropper.value.getCropBlob((data: Blob | null) => {
      if (!data) {
        ElMessage.error('获取裁剪数据失败，请重试！')
        return
      }
      // console.log('Blob size:', data.size) // 验证 Blob 是否有数据
      const file = new File([data], 'avatar.png', { type: 'image/png' })
      const formData = new FormData()
      formData.append('makefile', file)
      UserService.uploadAvatar(formData)
        .then((res) => {
          // console.log('upload response:', res)
          if (res.data) {
            options.img = res.data
            userStore.setAvatar(options.img)
            ElMessage.success('修改成功')
            UserService.getUserInfo()
            open.value = false
            visible.value = false
          } else {
            ElMessage.error('上传失败，请重试！')
          }
        })
        .catch((error) => {
          console.error('上传失败:', error)
          ElMessage.error('服务器错误，上传失败！')
        })
    })
  }

  /** 实时预览 */
  const realTime = (data: any) => {
    options.previews = data
  }
  /** 关闭窗口 */
  const closeDialog = () => {
    options.img = userStore.info.avatar
    options.visible = false
  }
  // console.log('cropper ref:', cropper.value)
</script>

<style lang="scss" scoped>
  .user-info-head {
    position: relative;
    display: inline-block;
    height: 80px;
  }

  .user-info-head:hover::after {
    position: absolute;
    inset: 0;
    font-size: 24px;
    font-style: normal;
    line-height: 80px;
    color: #eee;
    cursor: pointer;
    content: '+';
    background: rgb(0 0 0 / 50%);
    border-radius: 50%;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
</style>
